Employee Benefit Plans (Reconciliation of Level 3 Assets) (Details) - Pension plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 808.6	$ 711.0
Foreign currency exchange rate changes	(10.7)	32.2
Fair value of plan assets at end of year	815.6	808.6
Alternative Investments
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	40.6
Fair value of plan assets at end of year	45.2	40.6
Miscellaneous Funds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	36.6
Fair value of plan assets at end of year	40.2	36.6
Level 3
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	38.7	33.1
Related to assets still held at reporting	3.3	0.1
Relating to assets sold during period	0.0	0.0
Purchases, sales and /or settlements	4.7	2.4
Foreign currency exchange rate changes	(3.0)	3.1
Fair value of plan assets at end of year	43.7	38.7
Level 3 | Alternative Investments
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	2.1	2.3
Related to assets still held at reporting	1.4	(0.2)
Relating to assets sold during period	0.0	0.0
Purchases, sales and /or settlements	0.0	0.0
Foreign currency exchange rate changes	0.0	0.0
Fair value of plan assets at end of year	3.5	2.1
Level 3 | Miscellaneous Funds
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	36.6	30.8
Related to assets still held at reporting	1.9	0.3
Relating to assets sold during period	0.0	0.0
Purchases, sales and /or settlements	4.7	2.4
Foreign currency exchange rate changes	(3.0)	3.1
Fair value of plan assets at end of year	$ 40.2	$ 36.6